Backyard Orchard News
A hover fly, not a bee.
Passersby admiring the gazania blooming outside the Harry H. Laidlaw Jr. Honey Bee Research Facility at the University of California, Davis, might think that all the insects that frequent the golden flowers are bees.
Hover flies, aka syrphids or flower flies, also find the gazania quite attractive.
A member of the Aster family and native to South Africa, the gazania is a drought-tolerant ground cover.
Perfect for bees.
Perfect for hover flies.
The crab spider didn't go away hungry.
Camouflaged in the petals of a sedum, the cunning predator waits patiently for its prey.
An unsuspecting blowfly lands inches from the crab spider, unaware of its presence, and crawls toward it.
Wham! The crab spider snatches the blowfly and bites it, paralyzing it with its venom.
I'm just glad it wasn't a honey bee.
Carpenter bees pack pollen, too.
A carpenter bee (Xylocopa tabaniformis orpifex) visiting our gaura last weekend was packing bright yellow pollen, a sharp contrast against her black body.
Native pollinator specialist Robbin Thorp, emeritus professor of entomology at the University of California, Davis, said that "the large triangular pollen grains of this and other Onagraceae are held together in strings by viscin threads. You can see this on the anther above the bee’s head. This makes it a challenge for some bees to neatly pack this pollen, but helps pollen to get draped on the plant stigma."
The UC Davis Department of Entomology website includes information on three species of carpenter bees commonly found in California.
Dragonflies occasionally hang around our fish pond to catch flying insects, such as flies and mosquitoes.
Last weekend a gorgeous flame skimmer swooped down in our garden--a few yards from our fish pond--and landed on a bamboo stake.
She absolutely glowed in the late afternoon sun.
Soon she lifted off to catch insects. Would she return? She did. She repeatedly left her perch to nail more insects.
Lynn Kimsey, director of the Bohart Museum of Entomology at UC Davis and professor and vice chair of the UC Davis Department of Entomology, identified it as a female Libellula saturata. Order: Odonata. Suborder: Epiprocta. Family: Libellulidae.
The Bohart Museum contains some seven million insect specimens.
The flame skimmer is there, too. It's also on a dragonfly poster that the Bohart offers for sale in its gift shop or online.
You'll learn all about butterflies and moths of Central Europe if you attend his talk or webinar (listen live) from 12:10 to 1 p.m. on Wednesday, May 26 in 122 Briggs, University of California, Davis. The webcast will later be archived.
His topic: “Butterflies and Moths in Central Europe: Natural History, Climate Change and Voltinism."
Altermatt is the last speaker in a series of spring seminars launched March 31 by the UC Davis Department of Entomology.
Altermatt, who is with the Marcel Holyoak Group at UC Davis, received his doctorate in 2007 from the University of Basel, Switzerland. From 2007-2009, he served as a scientific collaborator at Hintermann & Weber AG, (Ecological Consultancy, Planning and Research), working on the project “Biodiversity Monitoring Switzerland.”
Entomology graduate students James Harwood and Amy Morice of professor James Carey’s lab will be webcasting the seminar. The Wednesday webcastings draw widespread audiences, some from as far away as Brazil.
This is the last spring seminar, but the noon-hour seminars will continue in the fall.
Amy Morice and James Harwood